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Official AQA Biology Unit 3 14th May 2013 NEW SPEC Watch

  • View Poll Results: VOTE HERE--> What do you think the 6 marker will be?
    Explaining features/functions of the lungs
    8.15%
    Ventilation
    11.11%
    Blood flow in heart
    16.30%
    Explain Transport in blood
    5.19%
    Explain Transport in plants
    5.19%
    Evaluate kidney transplants/dialysis
    28.89%
    Explain biogas generator
    31.11%
    Other (please comment with your suggestion)
    12.59%
    The effects of global warming
    8.15%
    Evaluate the use of Artificial blood
    13.33%
    Evaluate the effectiveness of sports drinks
    11.11%

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    (Original post by Pistol 33)
    Quadrat squares and %? How did you find the last 2 questions btw,along with the the immobilised fructose questions
    I got 7 for quadrat squares and 28%.. Although the bit about how I calculated the squares baffled me.. I just used the key counted :|

    For the immobilised one I think I said its better because enzyme and product don't need to be mixed or separated after reaction.. Not too sure about that though..


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    (Original post by Aspire101)
    I got 7 for quadrat squares and 28%.. Although the bit about how I calculated the squares baffled me.. I just used the key counted :|

    For the immobilised one I think I said its better because enzyme and product don't need to be mixed or separated after reaction.. Not too sure about that though..


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    i put that, and then something about different densities would mean the enzyme would separate and therefore not catalyse all reactions? dunno though.. and i HATED the question on plants towards the end :'/
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    [QUOTE=lucy1996;42610069]i put that, and then something about different densities would mean the enzyme would separate and therefore not catalyse all reactions? dunno though.. and i HATED the question on plants towards the end :'/[/QU
    What did you put on the HEXA one, where it says why didn't the boy get the genetic disorder.
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    (Original post by bwr19)
    Hydrochloric Acid, Bile?

    (Original post by Aspire101)
    6 marker wasn't too bad.. I wrote about lipase being produced in the pancreas/ small intestine, bile providing alkaline conditions and emulsifying the lipids so there is a greater surface area for lipase to act on..


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    (Original post by lucy1996)
    did a lot worse on B2! for the fats one, what other chemicals are involved?? and i wrote a little about proteins being made in the ribosomes?!?

    (Original post by hs.wong96)
    aha i put 6.5 for the squares and 26%...

    (Original post by Pistol 33)
    Quadrat squares and %? How did you find the last 2 questions btw,along with the the immobilised fructose questions

    (Original post by Pistol 33)
    I didn't write the last one. What did you put for the quadrat number of squares? I put 4 like an idiot

    (Original post by lucy1996)
    originally put 6.5, changed it to 7. presume they'll except 6-7?

    (Original post by Pistol 33)
    How did you get 6.5-7? im baffled
    Please keep B2 dicussion to the official thread to avoid confusion Thanks!
    http://www.thestudentroom.co.uk/show....php?t=2350733
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    (Original post by lucy1996)
    i put that, and then something about different densities would mean the enzyme would separate and therefore not catalyse all reactions? dunno though.. and i HATED the question on plants towards the end :'/

    [QUOTE=Pistol 33;42610113]
    (Original post by lucy1996)
    i put that, and then something about different densities would mean the enzyme would separate and therefore not catalyse all reactions? dunno though.. and i HATED the question on plants towards the end :'/[/QU
    What did you put on the HEXA one, where it says why didn't the boy get the genetic disorder.

    (Original post by Aspire101)
    I got 7 for quadrat squares and 28%.. Although the bit about how I calculated the squares baffled me.. I just used the key counted :|

    For the immobilised one I think I said its better because enzyme and product don't need to be mixed or separated after reaction.. Not too sure about that though..


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    (Original post by Pistol 33)
    For the HEXA question, what did u put when it said explain why the boy didn't get the genetic disorder or something
    Please keep B2 dicussion to the official thread to avoid confusion Thanks!
    http://www.thestudentroom.co.uk/show....php?t=2350733
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    (Original post by lucy1996)
    i put that, and then something about different densities would mean the enzyme would separate and therefore not catalyse all reactions? dunno though.. and i HATED the question on plants towards the end :'/
    Hmm yeah the plants one was quite confusing.. I think I said they were similar in appearance for the same species bit.. And the fact that they could interbreed. Did you get 12 for the number of chromosomes in the offspring?


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    For the 6 mark we only had to talk about factory farming didn't we as it said explain the advantages and disadvantages of the method?
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    This is B3 discussion why are people talking about B2?

    Yeah Jenny, it did.
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    i thought the exam was good , a few tough questions... I think that i got somewhere between 47-50.
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    can someone remind me please what the question on mass decrease was - I got 100???
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    from my perspective i'm going on the basis of :

    46 A*
    37 A
    29 B
    21 C
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    (Original post by Captain Anonymous)
    i thought the exam was good , a few tough questions... I think that i got somewhere between 47-50.
    It thought it was okay - I think I got somewhere around that too.
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    (Original post by Jennym5)
    For the 6 mark we only had to talk about factory farming didn't we as it said explain the advantages and disadvantages of the method?
    Yh I just went on about reducing movement and heating reducing biomass lost. Takes up less land which could be used for farming. Less movement, cheaper for suppliers: cheaper for consumers. Con- Animal cruelty. Diseases because close together. Anti-biotics pass on to humans, Resistant strains developed
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    (Original post by Alex Wonderkid)
    can someone remind me please what the question on mass decrease was - I got 100???
    you will get 1 mark for that: you had to then divide by the time change so 150 i think it was
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    so 100/150

    = 0.6666666 / 0.7
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    (Original post by Captain Anonymous)
    so 100/150

    = 0.6666666 / 0.7
    Yup I got that except I wrote it as 0.67
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    I've never been so relieved that nothing about biogas generators came up


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    (Original post by BI0)
    This is B3 discussion why are people talking about B2?

    Yeah Jenny, it did.
    I have directed them towards the correct thread, avoids confusion
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    Don't think I read the question properly!
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    (Original post by Captain Anonymous)
    so 100/150

    = 0.6666666 / 0.7
    dude I nearly thought you meant the answer was 0.666 divided by 0.7 haha... I just put 0.6'
 
 
 
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